كيخيا محمد, سعيد نسيبة, and شعبان نغم. 2022. “Difficulties Experienced by School Principals in the Interior and Exterior Engineering Spaces of the School Building”. Tishreen University Journal -Engineering Sciences Series, 44 (1):283-96. https://journal.tishreen.edu.sy/index.php/engscnc/article/view/12042.